890658620

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1\times {\mathrm{3217}}^1$

素因数の和:3462

約数の個数: 48

約数和(自身を含む): 1902996480

約数和(自身を除く): 1012337860

約数列:

[1, 2, 4, 5, 10, 20, 109, 127, 218, 254, 436, 508, 545, 635, 1090, 1270, 2180, 2540, 3217, 6434, 12868, 13843, 16085, 27686, 32170, 55372, 64340, 69215, 138430, 276860, 350653, 408559, 701306, 817118, 1402612, 1634236, 1753265, 2042795, 3506530, 4085590, 7013060, 8171180, 44532931, 89065862, 178131724, 222664655, 445329310, 890658620]

約数ペア:

[(1, 890658620), (2, 445329310), (4, 222664655), (5, 178131724), (10, 89065862), (20, 44532931), (109, 8171180), (127, 7013060), (218, 4085590), (254, 3506530), (436, 2042795), (508, 1753265), (545, 1634236), (635, 1402612), (1090, 817118), (1270, 701306), (2180, 408559), (2540, 350653), (3217, 276860), (6434, 138430), (12868, 69215), (13843, 64340), (16085, 55372), (27686, 32170)]